Table 2.

OR for the association between H. pylori infection and the risk of TN types.

C14 test	TN types	Controls	Model 1	Model 2	Model 3
	n (%)	n (%)	OR (95% CI)	OR (95% CI)	OR (95% CI)
H. pylori (−)	7,575 (58.1%)	18,139 (59.7%)	1.00 (reference)	1.00 (reference)	1.00 (reference)
H. pylori (+)	5,461 (41.9%)	12,236 (40.3%)	1.07 (1.03–1.14)	1.02 (0.97–1.06)	1.01 (0.97–1.06)
P value	–	–	0.002*	0.505	0.597

Model 1: unadjusted; Model 2: adjusted for gender, age, BMI, systolic, diastolic; Model 3: Model 2 + adjusted for TCH, TG, LDL, HDL.

TN, thyroid nodule; C14 test, carbon-14 urea breath test; CI, confidence interval; BMI, body mass index; SP, systolic pressure; DP, diastolic pressure; TCH, total cholesterol; TG, triglyceride; LDL, low-density lipoprotein; HDL, high-density lipoprotein.

*P value is considered statistically significant.